(Program
  (Module
    (Identifier))
  (Function
    (Empty)
    (Identifier)
    ([]))
  (Function
    (Empty)
    (Identifier)
    (
      (Identifier)
      (Pointer
        (Identifier)))
    ([]))
  (Function
    (Empty)
    (Identifier)
    (Identifier)
    ([]))
  (Function
    (Empty)
    (Identifier)
    (Identifier)
    (Identifier)
    ([])))